It's great for you that you really really believe that, though it can't be proven beyond any shadow of a doubt since the entirety of your argument stems from bibilical prophecy. (Hence why your religous ferver is called "faith", not fact or science. But more power to you.)
If you are right, good for you. Yet, if you are wrong, then you have spent much of your life in regards to gay rights persecuting a minority, but still significant subset of society, who doesn't accept that their gayness is going to damn then they way you claim. Again, with no more substantiation than anyone else on earth.
Fortunately, for those who don't hold your die-hard religous beliefs, the laws of the land protect the rest of us from people like you.